root:/etc/init.d$ lsmod |grep ^snd|awk {'print $1'}|xargs rmmod
ERROR: Module snd_ice1724 is in use
ERROR: Module snd_ice17xx_ak4xxx is in use by snd_ice1724
ERROR: Module snd_ak4114 is in use by snd_ice1724
ERROR: Module snd_ak4xxx_adda is in use by snd_ice1724,snd_ice17xx_ak4xxx
ERROR: Module snd_ac97_codec is in use by snd_ice1724
ERROR: Module snd_pcm is in use by snd_ice1724,snd_ak4114,snd_ac97_codec
ERROR: Module snd_mpu401_uart is in use by snd_ice1724
ERROR: Module snd_rawmidi is in use by snd_mpu401_uart
ERROR: Module snd_timer is in use by snd_pcm
ERROR: Module snd_seq_device is in use by snd_rawmidi
ERROR: Module snd is in use by snd_ice1724,snd_ak4114,snd_ak4xxx_adda,snd_ac97_codec,snd_pcm,snd_mpu401_uart,snd_rawmidi,snd_timer,snd_seq_device
ERROR: Module snd_page_alloc is in use by snd_pcm
root:/etc/init.d$